125654589 has 24 divisors (see below), whose sum is σ = 189888192. Its totient is φ = 79918080.

The previous prime is 125654587. The next prime is 125654591. The reversal of 125654589 is 985456521.

125654589 is a `hidden beast` number, since 1 + 2 + 5 + 65 + 4 + 589 = 666.

It is an interprime number because it is at equal distance from previous prime (125654587) and next prime (125654591).

It is not a de Polignac number, because 125654589 - 2¹ = 125654587 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125654587) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132214 + ... + 133160.

It is an arithmetic number, because the mean of its divisors is an integer number (7912008).

Almost surely, 2^125654589 is an apocalyptic number.

It is an amenable number.

125654589 is a deficient number, since it is larger than the sum of its proper divisors (64233603).

125654589 is a wasteful number, since it uses less digits than its factorization.

125654589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1614 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 125654589 is about 11209.5757725259. The cubic root of 125654589 is about 500.8712662418.

The spelling of 125654589 in words is "one hundred twenty-five million, six hundred fifty-four thousand, five hundred eighty-nine".